A-type compression permanent deformation cutting knife

accord withGB7759、ISO815requirement

diameter29mm, suitable for compression permanent deformationAType specimen

There are other specifications of cutting knives available for purchase:
1、2*35Dumbbell cutter

2、3*100Dumbbell cutter
3、4*75Dumbbell cutter
4、4*50Dumbbell cutter

5、5*56Dumbbell cutter

6、5*74I-shaped cutting knife

7、5*100Dumbbell cutter

8、6*115Dumbbell cutter

9、9.5*150Oxygen index cutting knife

10、9*60Delft cutting knife

11、10*100Dumbbell cutter

12、10*120Plastic film dumbbell cutter
13、15*150Straight blade

14、13*152Porous material dumbbell cutter

15、6*40Low temperature brittlenessAType knife

16Right angle tearing cutter

17Pant cutting knife

18Crescent shaped cutting knife

19、10mmCircular cutting knife

20、13mmCircular cutting knife

21、29mmCircular cutting knife

There are also special size cutting knives available for customization upon request

For blade maintenance:

The cutting edge of the cutting blade should be regularly maintained and serviced, as blunting, chipping, or curling of the edge can cause defects in the specimen and affect the test results. When the cutting blade is not in use, the cutting edge should be placed on a soft sponge or kept out of contact with the surface.

The cutting blade should be stored in a dry environment and coated with protective oil to prevent corrosion.

When using, the cutting edge should be protected by placing a suitable soft and hard tape or high-quality cardboard underneath the sample to protect the cutting edge from damage. The cutting edge should be regularly ground to maintain sharpness.

Note: Maintenance of the cutting edge is important. The cutting edge can be lightly ground and trimmed with a grinding stone, and the condition of the cutting edge can be evaluated by testing the fracture point of the sample after a series of experiments. When removing the fractured specimen from the clamp of the testing machine, check whether there is a tendency for the specimen to fracture at or near the same point. If there is such a tendency, it indicates that the cutting edge may become dull, have a notch, or curl at this specific location.

Cutting lubrication:

Lubricate the cutting blade or sample surface with diluted detergent, and pay attention to wiping the metal surface dry after using the lubricant to prevent rusting of the cutting edge.